Constant aborting of Windows 8.1 VM

[Funkster]

There has not been any rhyme or reason that I can tell for the crashing. It will happen when I bring my laptop out of sleep and happen out of the blue as well. I have attached a log from to help find the cause. I'm at a loss as to what it could be. Thanks for any help you can give

[Perryg]

Assigning both host cores to the guest is never advisable

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00:00:00.557813   NumCPUs         <integer> = 0x0000000000000002 (2)

00:00:01.685317 Physical host cores: 2

You need to fix the shared folder mappings as well

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00:00:01.690415     Host path '/run/media/mfunk/Seagate Expansion Drive', map name 'Seagate_Expansion_Drive', writable, automount=true, create_symlinks=false, missing=true
00:00:01.690580 ERROR [COM]: aRC=NS_ERROR_INVALID_ARG (0x80070057) aIID={8ab7c520-2442-4b66-8d74-4ff1e195d2b6} aComponent={Console} aText={Shared folder path '/run/media/mfunk/Seagate Expansion Drive' does not exist on the host}, preserve=false
00:00:01.690680 Console: VM runtime error: fatal=false, errorID=BrokenSharedFolder message="The shared folder 'Seagate_Expansion_Drive' could not be set up: Shared folder path '/run/media/mfunk/Seagate Expansion Drive' does not exist on the host.
00:00:01.690683 The shared folder setup will not be complete. It is recommended to power down the virtual machine and fix the shared folder settings while the machine is not running"

This is where the guest starts to have serious problems. Have you tried with 3D acceleration ( video ) disabled? If so and it helps then you might consider a ticket at bugtracker

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00:53:22.090623 UIMachineLogicFullscreen: Guest-screen count changed.
00:53:22.093473 UIMultiScreenLayout::update: GUI/AutomountGuestScreens is disabled.